Question

completati

(1/2 +x) totul la a doua =
(2-x)(2+x)(4+xla a doua ) =

Answer 1

(1/2+x)^2 = 1/4+ 2×1/2xX+ x^2
= 1/4+ x+ x^2
aici am aplicat binom la patrat

(2-x)(2+x)(4+x^2)
= (4-x^2)(4+x^2)
= 16- x^4
am aplicat de doua ori diferenta de patrate

x^2 e x la patrat

sper ca a ajutat :)